Given history, why should anyone believe that those who want to further limit the right to arms for the law abiding will cease their efforts to do so with universal background checks?
Since I haven't suggested that I want to further limit the right of law abiding citizens, I cannot respond to this question.
I can and will ask a question of the OP (who will respond with one of the logical fallacies he is known for, and lie about my arguments for Licensing and Registration of Firearms by individual states which choose to pass enabling legislation to do so.
What part of the Constitution provides you with privacy, or prohibits a State from require a Doctor to be licensed, a driver to be licensed, a teacher to have a certificate and a contractor to be licensed? How is that different than requiring an individual who wants to own, possess or have in his or her custody and control a license.
How is registration of a gun any different than the control of poisons and explosives, which require both a license and a record of purchase?